填空题

Velcro is probably the most famous and certainly the most successful example of biological mimicry, or "biomimetics".

【参考答案】

Y
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填空题
Velcro is a product used to join other things together and was invented by a Swedish inventor.
单项选择题
A．popularB．distinctC．ordinaryD．widespread
A．popular
B．distinct
C．ordinary
D．widespread
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